High temperature primary galvanic element

Details High temperature primary galvanic element High temperature primary galvanic element

1984-10-03

1987-03-17

Hearn, Brian E.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer or spacer insulating structure

429144, 429145, 429133, 429 94, 429251, 429252, H01M 214, H01M 216, H01M 400

Patent

active

046506802

ABSTRACT:
In view of operating temperatures above 100.degree. C., a silver oxide/zinc cylindrical cell is provided with a housing cup which is enclosed by a sealing element formed of PTFE, and which incorporates a double-layer separator whose inner layer is formed of a semi-permeable ion exchange membrane and whose outer layer is formed of a flexible ceramic material. The element is protected against extreme overpressure, in excess of 65 bar, by a rupture line in the form of an indentation in the bottom of the cup.

REFERENCES:
patent: 3287166 (1966-11-01), Arrance
patent: 3997366 (1976-12-01), Davis, Jr.
patent: 4034144 (1977-07-01), Chireau
patent: 4091185 (1978-05-01), Chireau et al.
patent: 4105835 (1978-08-01), Guitton et al.
patent: 4122241 (1978-10-01), Ciliberti, Jr.
patent: 4273840 (1981-06-01), Machi et al.
patent: 4287272 (1981-09-01), Machi et al.
patent: 4378414 (1983-03-01), Furukawa et al.
patent: 4468441 (1984-08-01), D'Agostino

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